Nope, that was pretty much it. S&W still had the majority share of LE firearms contracts in the US. The FBI and other LE agencies were figuring out that the 10mm was a bit more than they bargained for, and dificult for some smaller statured officers to fire and control. S&W developed a product to fit the need/desires of their major customer base. They marketed it well, pushed it well, and had a ready market to push it out to. Gun manufacturers could used some of the barrel manufacturing equipment due to same bore diameter, just a differerent chamber depth.